Step-By-Step Brows First: SHAPE/TWEEZE Map out your brows with a creamy concealer. This prevents you from over-tweezing because you’ll have a clear shape you’re trying to create! Take a brush, line up with the edge of nostril. This is where your brow should start. Line brush up with corner of mouth, edge of nostril and straight through center of pupil. This should be your highest point. Line brush up with corner of mouth, edge of nostril and outer edge of eye. This is where your brow should end.